Reinforced aluminum matrix composite

Details Reinforced aluminum matrix composite Reinforced aluminum matrix composite

1988-08-04

1992-04-21

Morris, Theodore

Stock material or miscellaneous articles

All metal or with adjacent metals

Laterally noncoextensive components

C22C 3200

Patent

active

051067021

ABSTRACT:
A reinforced aluminum matrix composite having improved toughness and ductility over known composites, without any sacrifice in strength or stiffness. In particular, the invention relates to a reinforced aluminum alloy consisting essentially of copper and magnesium as the principal alloying elements. The alloy may have other soluble alloying elements up to their solubility limits in the base alloy. The alloy may include a small percentage of insoluble metallic elements in amounts which do not adversely affect the sought after improvements in ductility and toughness. The reinforcement may be either a ceramic material, in the form of whiskers, particles, or chopped fibers, or a metal.

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Nutt, "Interfaces and Failure Mechanisms in Al-Sic Composites", Mar. 2-6, 1986, pp. 157-167.
Nutt and Duva, "A Failure Mechanism in Al-Sic Composites", 1986, pp. 1055-1058.
Nutt and Needleman, "Void Nucleation at Fiber Ends in Al-Sic Composites", 1987, pp. 705-710.
Nutt and Carpenter, "Non-equilibrium Phase Distribution in an Al-Sic Composite", 1985, pp. 169-177.
Bates, "Ductility and Toughness Improvement Program", Apr., 1985. (abstract only).
Niskanen, "The Aluminum/SiCw MMC Damage Tolerance/Ductility Enhancement Program: An Overview", Jul. 1986. (abstract only).
Bates and Waltz, "Metal Matrix Composite Structural Demonstration Program", Jul., 1986. (abstract only).
Bates and Hughes, "Metal Matrix Composite Structural Demonstration Program", May 26-28, 1987. (abstract only).

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